# GanttDeclaration

The GanttDeclaration type declaration and related types. Optional fields are marked with ?.

Canonical: https://chart.syidax.com/docs/types/GanttDeclaration/

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## Type declaration

```typescript
export interface GanttDeclaration extends GanttTaskInput {
  start:number;
  end:number;
  milestone:boolean;
  progress:number;
  baseline?:GanttBaseline;
}
```

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## Related types

- [GanttTaskInput](https://chart.syidax.com/docs/types/GanttTaskInput.md)
- [GanttBaseline](https://chart.syidax.com/docs/types/GanttBaseline.md)